Android Java: Use Proximity Detector

For Android Java API level : Min 8, target 18 Using the proximity detector, write an activity that turns the screen off when the phone is near a person's ear, and turns the screen on again when the phone is pulled away. "Terms of payment" Upon awarding the job, a milestone will be created for the "entire" amount owed. Freelancer will hold this money, but none of the milestone will be released until the job is 100% complete. Do not ask for any milestone payments until all the work is 100% finalized. Its important to note, that since Freelancer will hold ALL the funds, you have NO risk of not getting paid as long as the job is done properly and in a timely manner. Bid responses sent to us that are automated - will be ignored, please do not send us automated bids if you want to be taken seriously. If you would like to be considered, please make sure to read the above requirements carefully. This is a straight forward project for a programmer that "knows" how to code in Android Java.